LDS protection clutch for sweeper

Abstract

The utility model relates to the technical field of clutches, in particular to an LDS (Laser Direct Structuring) protective clutch for a sweeper, which comprises a connecting shaft, a driven disc fixedly connected to one end of the connecting shaft, a plurality of clamping blocks annularly distributed and fixedly connected to one side of the driven disc, a pressing disc arranged on the outer side of the connecting shaft, a spring arranged on one side of the pressing disc, and a groove arranged inside the pressing disc. A gear is fixedly connected into the groove, a plurality of tooth grooves are annularly distributed in the gear, and the clamping blocks and the tooth grooves are all arranged to be arc-shaped, so that the meshing process is smoother, reduction of abrasion of parts is facilitated, the service life of the clutch is prolonged, the arc-shaped structure has certain elastic deformation capacity during meshing, and the service life of the clutch is prolonged. According to the sweeper, impact and vibration in the power transmission process can be absorbed and buffered to a certain extent, damage to a transmission system can be reduced, other parts are protected against overload impact, and meanwhile the overall stability and reliability of the sweeper can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to clutch technical field, concretely relates to a kind of for LDS protective clutch of sweeper. BACKGROUND

[0002] In sweeper, LDS (laser ranging system) is the key component for realizing accurate navigation and obstacle avoidance. However, during the operation of the sweeper, the LDS may be subjected to various external force impacts, such as collisions with furniture, walls, etc., or vibrations when crossing obstacles, which can cause damage to the LDS components and affect the normal operation of the sweeper. In order to protect the LDS and improve the reliability and stability of the sweeper, a protective clutch is needed to separate the LDS module from the components that may transmit harmful impact forces, so as to avoid excessive compression, distortion or collision of the LDS, thereby effectively protecting the LDS module from serious damage.

[0003] The traditional clutch assembly in the sweeper has a complex structure, contains many small parts that are prone to damage, and has a fixed connection mode, which makes it inconvenient to quickly disassemble and maintain the clutch, and the repair cost and difficulty are high after damage. In addition, the contact surfaces between the small parts may wear unevenly during use, affecting the smooth start and operation of the equipment. SUMMARY

[0004] The utility model provides a kind of for LDS protective clutch of sweeper to solve the problem of excessive wear in traditional clutch, which affects the performance and service life of the clutch.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of for LDS protective clutch of sweeper, which includes a connecting shaft, the connecting shaft is fixedly connected with a driven disc at one end, the driven disc is fixedly connected with a plurality of clamping blocks on one side in a ring shape, a pressure plate is arranged outside the connecting shaft, a spring is arranged on one side of the pressure plate, a recess is arranged inside the pressure plate, a gear is fixedly connected inside the recess, a plurality of gear slots are arranged in a ring shape inside the gear, and the clamping blocks and gear slots are both arranged in a circular arc shape.

[0006] Based on the above technical solution, the utility model can also be improved as follows.

[0007] As a preferred embodiment, the clamping blocks and gear slots are connected by meshing, the gap between the clamping blocks and gear slots is 0.05-0.2mm, and wear-resistant coatings are arranged on the outer surfaces of the driven disc and clamping blocks and the inner surfaces of the gear and gear slots.

[0008] The beneficial effect of the further scheme is that the wear between the clamping block and the gear slot is reduced, the manufacturing and installation errors of the gear are compensated, the deformation caused by heat and force during operation is compensated, the impact, vibration and noise caused by too large gap during engagement are avoided, and the jamming or burning caused by too small gap is avoided.

[0009] Preferably, the inner end of the connecting shaft is provided with a mounting groove, and the spring is fixedly connected with a limiting piece at one end, and the limiting piece is matched with the mounting groove.

[0010] Preferably, the limiting piece is an elastic limiting piece with elasticity.

[0011] The inner diameter of the limiting piece is consistent with the groove bottom diameter of the mounting groove, the limiting piece is clamped and connected to the mounting groove, and the limiting piece is internally provided with a connecting port.

[0012] The beneficial effect of the further scheme is that the stable use of the spring is ensured, the quick installation and disassembly between parts are facilitated, and the maintenance of the clutch in the later period is facilitated.

[0013] Preferably, the pressure plate slides on the outer side of the connecting shaft, the pressure plate is consistent with the axial direction of the connecting shaft, the inner diameter of the gear is consistent with the outer diameter of the connecting shaft, the inner side of the gear is provided in a circular arc shape, and the inner side of the gear is in sliding contact with the outer surface of the connecting shaft.

[0014] The beneficial effect of the further scheme is that the contact points between the gear and the connecting shaft are reduced, the sliding smoothness of the pressure plate is improved, the wear between parts after long-time use is reduced, and the service life of the parts is improved.

[0015] Compared with the prior art, the beneficial effect of the utility model is:

[0016] 1. The clutch has simple overall structure, simple installation between parts, and maintenance personnel can operate more quickly, and during maintenance and repair, related parts are convenient to disassemble and replace, maintenance efficiency is improved, and use and maintenance costs are reduced.

[0017] 2. Compared with the traditional straight tooth structure during use, the circular arc structure is easier to guide the mutual embedding between parts, which helps to reduce the wear of the parts and improve the service life of the clutch, the circular arc structure has a certain elastic deformation capacity during engagement, and can absorb and buffer the impact and vibration in the power transmission process to a certain extent, the buffering effect can reduce the damage to the transmission system, protect other parts from overload impact, and ensure the accuracy and stability of power transmission. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a side view of the overall structure of the utility model.

[0019] Figure 2 It is the exploded view of the utility model;

[0020] Figure 3 It is the pressure plate structure schematic view of the utility model;

[0021] Figure 4 It is the driven disc structure schematic view of the utility model.

[0022] The meaning of each reference numeral in the figure is as follows:

[0023] 1, connecting shaft;11, driven disc;12, clamping block;13, mounting groove;

[0024] 2, pressure plate;21, spring;22, limiting piece;23, connecting port;24, recess;25, gear;26, gear slot. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figures 1-4 The embodiment provides a kind of for sweeping machine LDS protection clutch, including connecting shaft 1, considering that the contact surface can be unevenly worn after long time use of traditional meshing clutch, reduce the performance and service life of clutch, affect the smooth start and operation of equipment, therefore, driven disc 11 is fixedly connected with clamping block 12 on one side of driven disc 11 and is distributed in ring shape, connecting shaft 1 outer side is provided with pressure plate 2, one side of pressure plate 2 is provided with spring 21, recess 24 is provided in pressure plate 2, gear 25 is fixedly connected in recess 24, gear 25 is provided with gear slot 26 and is distributed in ring shape in the inside, clamping block 12 and gear slot 26 are all set as arc shape, overall structure is simple, it is convenient for later maintenance and reduce equipment use cost, compared with traditional straight-tooth structure, arc structure is more easily guided mutual embedding between gear slot 26 and clamping block 12, reduce the resistance and impact when engaging, make engaging process more smooth, this helps to reduce the wear of parts, improve the service life of clutch, arc structure has certain elastic deformation ability when engaging, can absorb and buffer impact and vibration in dynamic transmission process to some extent, this buffering effect can reduce damage to transmission system.

[0027] The improvement of the embodiment is that the engagement process is smoother by setting the clamping block 12 and the tooth groove 26 to be circular arc shapes, which helps to reduce the wear of parts, improve the service life of the clutch, and have a certain elastic deformation capacity during engagement, which can absorb and buffer the impact and vibration during power transmission to a certain extent, which can reduce the damage to the transmission system, protect other parts from overload impact, and also help to improve the overall stability and reliability of the sweeper.

[0028] Specifically, in order to ensure the stable engagement between the clamping block 12 and the tooth groove 26, the clamping block 12 and the tooth groove 26 are engaged, and the gap between the clamping block 12 and the tooth groove 26 can be controlled between 0.05-0.2mm, which can compensate for the manufacturing and installation errors of the gear 25, as well as the deformation caused by heat and stress during work, while ensuring that there will be no impact, vibration and noise due to too large gap during engagement, and also no jamming or burning phenomenon due to too small gap, and the outer surfaces of the driven disc 11 and the clamping block 12 and the inner surfaces of the gear 25 and the tooth groove 26 are provided with wear-resistant coating, reducing the wear between the clamping block 12 and the tooth groove 26.

[0029] Considering the instability of the spring 21 during use and the connection problem between the clutch parts, in order to ensure the stable use of the spring 21 and facilitate the quick installation and disassembly of parts, and facilitate the maintenance of the clutch later, an installation groove 13 is arranged at one end of the connecting shaft 1, and a limiting piece 22 is fixedly connected at one end of the spring 21 and cooperates with the installation groove 13. Among them, the limiting piece 22 can adopt an elastic limiting piece, which has a certain elasticity and can balance the installation and limiting through the elastic allowance.

[0030] Moreover, the inner diameter of the limiting piece 22 is consistent with the groove bottom diameter of the installation groove 13, the limiting piece 22 is clamped and connected in the installation groove 13, the limiting piece 22 is provided with a connecting port 23, the axial displacement between the spring 21 and the pressure plate 2 is limited by the limiting piece 22, and the relative positions are kept accurate and stable, which helps to maintain the normal working state of the clutch, ensures that the power can be effectively transmitted from the engine to the transmission, and the clamping connection between the limiting piece 22 and the connecting port 23 reduces the installation error, the connection structure is simple, and the maintenance personnel can operate more quickly, which is convenient for disassembly and replacement of related parts during maintenance and repair, improves the maintenance efficiency, and reduces the maintenance cost.

[0031] Considering that the pressure plate 2 needs to slide outside the connecting shaft 1 during use, in order to ensure stable sliding of the pressure plate 2 while reducing wear between the pressure plate 2 and the connecting shaft 1 parts, the pressure plate 2 slides outside the connecting shaft 1, the pressure plate 2 is consistent with the axial direction of the connecting shaft 1, the inner diameter of the gear 25 is consistent with the outer diameter of the connecting shaft 1, the inner side of the gear 25 is set to be arc-shaped, the inner side of the gear 25 is in sliding contact with the outer surface of the connecting shaft 1, the contact points between the gear 25 and the connecting shaft 1 are reduced, the sliding smoothness of the pressure plate 2 is improved, the wear between parts after long-term use is reduced, and the service life of the parts is improved.

[0032] In summary, the working principle of the present scheme is as follows:

[0033] The pressure plate 2 and the spring 21 are installed outside the connecting shaft 1 through the limiting piece 22, the limiting piece 22 is clamped and connected outside the mounting groove 13, the position of the limiting piece 22 can be quickly limited, the connecting structure is simple, maintenance personnel can operate more quickly, and during maintenance and repair, related parts can be easily disassembled and replaced, the maintenance efficiency is improved, the maintenance cost is reduced, when power needs to be transmitted during use, the operating mechanism pushes the pressure plate 2 to move towards the driven plate 11, the clamping block 12 and the gear slot 26 are aligned with each other and gradually enter the meshing state, the power of the connecting shaft 1 is transmitted to the pressure plate 2 through the meshing teeth, thereby driving the pressure plate 2 and the components connected thereto, such as the drive wheels and cleaning brushes of the sweeper, to rotate together, achieving normal operation of the sweeper, when the LDS system detects an obstacle in front, it will send a signal to the control system in advance, and the control system will cut off the power of the clutch after receiving the signal, canceling the force applied by the operating mechanism to the pressure plate 2, so that the pressure plate 2 and the driven plate 11 are separated along the axial direction, the clamping block 12 and the gear slot 26 are separated from each other, and the driving force of the connecting shaft 1 is no longer applied, thereby stopping rotation or isolating from the power source, and the corresponding working components of the sweeper also stop working, avoiding direct collision of the sweeper with the obstacle, thereby protecting the clutch and other components from damage, in this process, due to the arc-shaped structure of the clamping block 12 and the gear slot 26, compared with the traditional straight-tooth structure, the arc-shaped structure is easier to guide the mutual insertion between the gear slot 26 and the clamping block 12, reducing the resistance and impact during meshing, and making the meshing process smoother, which helps to reduce the wear of the components and improve the service life of the clutch. The arc-shaped structure has a certain elastic deformation ability during meshing, which can absorb and buffer the impact and vibration during power transmission to a certain extent, the buffering effect can reduce the damage to the transmission system, and ensure the smooth start and operation of the equipment.

[0034] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A LDS guard clutch for a sweeper comprising a connecting shaft (1), characterized in that: The connecting shaft (1) one end is fixedly connected with driven disc (11), one side of driven disc (11) is annularly distributed and fixedly connected with clamping block (12), the outer side of connecting shaft (1) is provided with pressure plate (2), one side of pressure plate (2) is provided with spring (21), the inside of pressure plate (2) is provided with recess (24), the inside of recess (24) is fixedly connected with gear (25), the inside of gear (25) is annularly distributed and provided with a plurality of gear grooves (26), the clamping block (12) and gear groove (26) are both provided as arc shape.

2. The LDS guard clutch for a robot vacuum of claim 1, wherein: The clamping block (12) and gear groove (26) are engagedly connected, the gap between the clamping block (12) and gear groove (26) is 0.05-0.2mm.

3. The LDS guard clutch for a robot, according to claim 1, wherein: The outer surface of one side of driven disc (11) and clamping block (12) and the inner surface of gear (25) and gear groove (26) are all provided with wear-resistant coating.

4. The LDS guard clutch for a robot, according to claim 1, wherein: The inside of one end of connecting shaft (1) is provided with mounting groove (13), one end of spring (21) is fixedly connected with limiting piece (22) matched with mounting groove (13).

5. The LDS guard clutch for a robot vacuum of claim 4, wherein: The limiting piece (22) is elastic limiting piece.

6. The LDS guard clutch for a robot, according to claim 4, wherein: The inside diameter of limiting piece (22) is consistent with the groove bottom diameter of mounting groove (13), the limiting piece (22) is clampedly connected in mounting groove (13).

7. The LDS guard clutch for a robot, according to claim 4, wherein: The inside of limiting piece (22) is provided with connecting port (23).

8. The LDS guard clutch for a robot, according to claim 1, wherein: The pressure plate (2) slides on the outer side of connecting shaft (1), the pressure plate (2) is consistent with the axial direction of connecting shaft (1).

9. The LDS guard clutch for a robot, according to claim 1, wherein: The inside diameter of gear (25) is consistent with the outside diameter of connecting shaft (1).

10. The LDS guard clutch for a robot, according to claim 1, wherein: The inside of gear (25) is provided as arc shape, the inside of gear (25) is in sliding contact with the outer surface of connecting shaft (1).

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